Sasuke smirked as he looked over at the kid to whom he was teaching a "Jutsu that the Nidaime himself had invented". He really was a gullible brat at that age.

He had no idea how he'd ended up in the past, but after the Fourth Shinobi World War had ended and Madara had been defeated by a seriously pissed Kakashi who'd been enraged that he'd brought his teammate Obito back from the grave just to taunt him about how he couldn't protect his teammates, and he'd been forcefully dragged home by Naruto after the usual application of his World Famous Therapy Jutsu, a great many strange things had happened in his life, making this barely blip on his Wierdometer.

"So, this will really literally stop any enemy in his tracks?" the little Sasuke who was just about to graduate the Academy asked.

"I've used it against A-ranked, S-ranked, and Kage-ranked missing-nin, and they have all been stopped by the might of this powerful jutsu." he said, barely keeping himself from laughing his ass off at the arrogant little brat in front of him.

He deserved to be taken down a peg or two.